Results 21 to 30 of about 119,672 (247)

Event Density Based Denoising Method for Dynamic Vision Sensor

Applied Sciences, 2020
Dynamic vision sensor (DVS) is a new type of image sensor, which has application prospects in the fields of automobiles and robots. Dynamic vision sensors are very different from traditional image sensors in terms of pixel principle and output data ...
Yang Feng, Hengyi Lv, Hailong Liu, Yisa Zhang, Yuyao Xiao, Chengshan Han   +5 more
doaj   +1 more source

Event-Based Angular Speed Measurement and Movement Monitoring

Sensors, 2022
Computer vision techniques can monitor the rotational speed of rotating equipment or machines to understand their working conditions and prevent failures.
George Oliveira de Araújo Azevedo, Bruno José Torres Fernandes, Leandro Honorato de Souza Silva, Agostinho Freire, Rogério Pontes de Araújo, Francisco Cruz   +5 more
doaj   +1 more source

Low Latency Event-Based Filtering and Feature Extraction for Dynamic Vision Sensors in Real-Time FPGA Applications

IEEE Access, 2019
Dynamic Vision Sensor (DVS) pixels produce an asynchronous variable-rate address-event output that represents brightness changes at the pixel. Since these sensors produce frame-free output, they are ideal for real-time dynamic vision applications with ...
Alejandro Linares-Barranco, Fernando Perez-Pena, Diederik Paul Moeys, Francisco Gomez-Rodriguez, Gabriel Jimenez-Moreno, Shih-Chii Liu, Tobi Delbruck   +6 more
doaj   +1 more source

Mixed Event-Frame Vision System for Daytime Preceding Vehicle Taillight Signal Measurement Using Event-Based Neuromorphic Vision Sensor

Journal of Advanced Transportation, 2022
An important aspect of the perception system for intelligent vehicles is the detection and signal measurement of vehicle taillights. In this work, we present a novel vision-based measurement (VBM) system, using an event-based neuromorphic vision sensor ...
Zhengfa Liu, Guang Chen, Ya Wu, Jiatong Du, Jörg Conradt, Alois Knoll   +5 more
doaj   +1 more source

Auto-Tuned Event-Based Perception Scheme for Intrusion Monitoring With UAS

IEEE Access, 2021
This paper presents an asynchronous event-based scheme for automatic intrusion monitoring using Unmanned Aerial Systems (UAS). Event cameras are neuromorphic sensors that capture the illumination changes in the camera pixels with high temporal resolution
Juan Pablo Rodriguez-Gomez, Augusto Gomez Eguiluz, Jose Ramiro Martinez-De Dios, Anibal Ollero   +3 more
doaj   +1 more source

Dynamic Vision Sensor Tracking Method Based on Event Correlation Index

Complexity, 2021
Dynamic vision sensor is a kind of bioinspired sensor. It has the characteristics of fast response, large dynamic range, and asynchronous output event stream. These characteristics make it have advantages that traditional image sensors do not have in the
Hengyi Lv, Yang Feng, Yisa Zhang, Yuchen Zhao   +3 more
doaj   +1 more source

Event Augmentation for Contact Force Measurements

IEEE Access, 2022
Neuromorphic vision sensor is an attractive technology that offers high dynamic range, and low latency which are crucial in robotic applications. However, the lack of event-based data in this field, limits the sensors’ performance in a real-world ...
Fariborz Baghaei Naeini, Sanket Kachole, Dimitrios Makris, Yahya Zweiri   +3 more
doaj   +1 more source

Visual Odometry with an Event Camera Using Continuous Ray Warping and Volumetric Contrast Maximization

Sensors, 2022
We present a new solution to tracking and mapping with an event camera. The motion of the camera contains both rotation and translation displacements in the plane, and the displacements happen in an arbitrarily structured environment.
Yifu Wang, Jiaqi Yang, Xin Peng, Peng Wu, Ling Gao, Kun Huang, Jiaben Chen, Laurent Kneip   +7 more
doaj   +1 more source

Investigation of Event-Based Surfaces for High-Speed Detection, Unsupervised Feature Extraction, and Object Recognition

Frontiers in Neuroscience, 2019
In this work, we investigate event-based feature extraction through a rigorous framework of testing. We test a hardware efficient variant of Spike Timing Dependent Plasticity (STDP) on a range of spatio-temporal kernels with different surface decaying ...
Saeed Afshar, Tara Julia Hamilton, Jonathan Tapson, André van Schaik, Gregory Cohen   +4 more
doaj   +1 more source

Neural Coding Strategies for Event-Based Vision Data [PDF]

ICASSP 2020 - 2020 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2020
Neural coding schemes are powerful tools used within neuroscience. This paper introduces three different neural coding scheme formations for event-based vision data which are designed to emulate the neural behaviour exhibited by neurons under stimuli. Presented are phase-of-firing and two sparse neural coding schemes.
Shane Harrigan, Sonya Coleman, Dermot Kerr, Pratheepan Yogarajah, Zheng Fang 0001, Chengdong Wu 0001   +5 more
openaire   +1 more source